/*
 * Copyright 2023 RTAkland
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package cn.rtast.qwsdk.utils

import java.io.BufferedReader
import java.io.ByteArrayInputStream
import java.io.InputStreamReader
import java.net.URL
import java.nio.charset.StandardCharsets
import java.util.zip.GZIPInputStream

object HTTPUtil {

    private fun unGZip(byteArray: ByteArray): String {
        val byteArrayInputStream = ByteArrayInputStream(byteArray)
        val gZIPInputStream = GZIPInputStream(byteArrayInputStream)
        val bufferedReader = BufferedReader(InputStreamReader(gZIPInputStream, StandardCharsets.UTF_8))
        val stringBuilder = StringBuilder()
        while (true) {
            val readLine = bufferedReader.readLine()
            if (readLine != null) {
                stringBuilder.append(readLine)
            } else {
                bufferedReader.close()
                gZIPInputStream.close()
                byteArrayInputStream.close()
                return stringBuilder.toString()
            }
        }
    }


    fun get(url: String): String {
        val response = URL(url).readBytes()
        return unGZip(response)
    }
}